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Glioma cells with stem cell-like properties are crucial for tumor initiation, progression and therapeutic resistance. Therefore, identifying specific factors in regulating stem-like traits is critical for the design of novel glioma therapeutics. Herein, we reported that ADP-Ribosylation Factor Like GTPase 4C (ARL4C) was highly expressed in glioma stem-like cells (GSLCs). GSLCs, determined by the efficiency of sphere formation and tumor growth , was increased by overexpression of ARL4C. ARL4C induced the tumorigenesis through ALDH1A3. Analyses of 325 patient specimens showed that ARL4C was highly expressed in glioblastoma (GBM) as compared with lower grade gliomas. In addition, higher level ARL4C expression in glioma was correlated with poorer progression-free survival and overall survival of patients. Therefore, ARL4C may act as a novel prognostic marker and a therapeutic target for GBM.
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http://dx.doi.org/10.7150/jca.45052 | DOI Listing |
Trends Microbiol
August 2025
State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, China. Electronic address:
Protein post-translational modifications (PTMs) serve as essential molecular switches that dynamically modulate cell signaling in response to developmental or external cues. Effective interference with host signaling is critical for successful infection, and such interference is often carried out by PTMs. It has long been believed that pathogens exploit host signaling pathways through biochemical mechanisms utilized by eukaryotic cells.
View Article and Find Full Text PDFElife
August 2025
Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, United States.
Endosomal recycling is a branch of intracellular membrane trafficking that retrieves endocytosed cargo proteins from early and late endosomes to prevent their degradation in lysosomes. A key player in endosomal recycling is the Commander complex, a 16-subunit protein assembly that cooperates with other endosomal factors to recruit cargo proteins and facilitate the formation of tubulo-vesicular carriers. While the crucial role of Commander in endosomal recycling is well established, its molecular mechanism remains poorly understood.
View Article and Find Full Text PDFInt J Colorectal Dis
August 2025
Department of Colorectal Surgery, The Third Affiliated Hospital of Kunming Medical University & Yunnan Cancer Hospital, No.519 Kunzhou Road, Kunming, 650118, China.
Background: Colon cancer (CC) is one of the three most common cancers worldwide. In the treatment of CC, 5-fluorouracil (5-FU) is one of the main components of chemotherapeutic combinations, but severe chemical resistance still occurs. In addition, endoplasmic reticulum (ER) oxidoreductase-1α (ERO1α) has been shown to be highly expressed in CC, but its specific molecular mechanisms remain unclear.
View Article and Find Full Text PDFSci Adv
August 2025
Guangdong Basic Research Center of Excellence for Precise Breeding of Future Crops, South China Agricultural University, Guangzhou 510642, China.
RNA viruses often remodel host intracellular membranes to establish specialized replication compartments through viral protein-induced phase separation. However, the mechanisms underlying membrane remodeling and the characteristics that render these sites conducive to replication remain poorly understood, particularly in plant negative-strand RNA viruses. Here, we demonstrate that the phosphoprotein (P) of rice stripe mosaic virus (RSMV) forms biomolecular condensates via liquid-liquid phase separation (LLPS) to recruit essential components for viral replication factories (VFs).
View Article and Find Full Text PDFCell Death Dis
August 2025
Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of the Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.
Lipid droplet (LD) -mitochondrion contacts play a crucial role in regulating energy metabolism and fatty acid oxidation in skeletal muscle cells. However, the proteins that regulate these interactions remain poorly understood. Here, we demonstrate that the binding between ADP-ribosylation factor 1(ARF1) and perilipin2 (Plin2) regulates LD-mitochondrion contacts under starvation conditions, facilitating the transfer of fatty acids from LDs to mitochondria.
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